Enhanced performance of an anode-supported YSZ thin electrolyte fuel cell with a laser-deposited Sm0.2Ce0.8O1.9 interlayer

被引：46

作者：

Lu, Zigui ^{[1
]}

Zhou, Xiao-dong ^{[1
]}

Fisher, Daniel ^{[2
]}

Templeton, Jared ^{[1
]}

Stevenson, Jeffry ^{[1
]}

Wu, Naijuan ^{[2
]}

Ignatiev, Alex ^{[2
]}

机构：

[1] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA

[2] Univ Houston, Ctr Adv Mat, Houston, TX 77204 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 02期

关键词：

IT-SOFC; Anode-supported; YSZ electrolyte; Dense SDC interlayer; Pulsed laser deposition; Ohmic resistance; LA(SR)FEO3 SOFC CATHODE; LA; POLARIZATION; TEMPERATURE; IMPROVEMENT; GD;

D O I：

10.1016/j.elecom.2009.11.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A power density of over 1.4 W cm(-2) at 0.7 V was achieved at 750 degrees C for an anode-supported YSZ thin electrolyte fuel cell with a dense Sm0.2Ce0.8O1.9 (SDC) interlayer fabricated by pulsed laser deposition, while the cell with a conventional porous SDC interlayer exhibited only 0.8 W cm(-2) at this voltage. The dense SDC interlayer significantly reduced the ohmic resistance of the fuel cell. For example, at 750 degrees C, the ohmic resistance of the fuel cell with a dense SDC interlayer was 0.08 Omega cm(2); while that of the cell with a porous SDC interlayer fabricated by conventional screen-printing was 0.16 Omega cm(2). The pronounced reduction in ohmic resistance might be due to the fully dense structure and thus improved electrical conductivity of the SDC interlayer, increased contact area at the interface between the dense SDC interlayer and the YSZ electrolyte. and suppressed Zr migration into the SDC interlayer. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：179 / 182

页数：4

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